2.2.2 spase://VMO/NumericalData/WDC/Port.aux.Francais/Magnetometer/PT1H/WDC_FORMAT Port-aux-Francais Magnetometer 1-hr Data in WDC Format 2012-05-02T12:34:56.789 Port-aux-Francais Magnetometer data, 1-hr time resoluion, in WDC format. Magnetic Field Vector Element List: DHXYZF. Note that the list of magnetic field elements that appear in the data set may change over the course of time. For instance, many stations have shifted from DHZ to the XYZ representation of the magnetic field. The time history listed below summarizes changes in element content. A description of the WDC Data Exchange Format for 1-hr magnetic field data is included at the end of this data product description. Please acknowledge: Ecole et Observatoire des Sciences de la Terre (EOST) for providing the data observations, and the British Geological Survey, World Data Center for Geomagnetism, Edinburgh for providing access to the data. spase://SMWG/Person/Aude.Chambodut GeneralContact DataProducer spase://SMWG/Person/Armelle.Bernard GeneralContact DataProducer spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact TechnicalContact The Geomagnetic Data Master Catalog at the WDC for Geomagnetism, Edinburgh http://www.wdc.bgs.ac.uk/catalog/intro.html Web site for access to magnetometer data hosted by the World Data Center for Geomagnetism, Edinburgh spase://VMO/NumericalData/WDC/Port.aux.Francais/Magnetometer/PT1H spase://SMWG/Repository/UCLA/VMO Online Open The WDC Geomagnetic Data Master Catalog Repository ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year The Geomagnetic Data Master Catalog hosted by the British Geological Survey, World Data Center for Geomagnetism, Edinburgh. Text ASCII 311710 bytes P1Y Please thank the British Geological Survey, World Data Center, Edinburgh for use of data from the WDC Geomagnetic Data Master Catalog. Calibrated spase://SMWG/Instrument/Ground/Port.aux.Francais/Magnetometer MagneticField 1957-10-01T00:00:00.000 2009-12-31T23:00:00.000 Some data gaps may be present. If a gap is present at the beginning or end of the file, the time span start and stop dates could be inaccurate as they are assigned assuming an absence of such gaps. PT1H Earth.Surface ground station magnetometer magnetic field magnetogram Port-aux-Francais WDC Station Code: PAF 1-hour WDC Format Universal Time Time Time is expressed using a five column format with the following order: year, month, day, hour, and minute, each stored in interger format. The time columns are the first five columns (1,2,3,4,5) in the flat file. PT1H 5 Universal Time expressed using a 5-column year, month, day, hour, minute representation Year 1 Month 2 Day 3 Hour 4 Minute 5 Temporal Magnetic Field Declination D Port-aux-Francais Magnetic Field Vector Declination Angle PT1H Degree 2*pi > Radian Cylindrical CGM -180.0 180.0 9999 DirectionAngle.AzimuthAngle Magnetic Horzontal Magnetic Field Magnitude H Port-aux-Francais Horzontal Magnetic Field Magnitude PT1H nT 10^9 >T Cylindrical CGM 0 70000 9999 Projection.IJ Magnetic North-South Horizontal Magnetic Field Component X Port-aux-Francais North-South Horizontal Magnetic Field Component, positive Northward PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.I Magnetic East-West Horizontal Magnetic Field Component Y Port-aux-Francais East-West Horizontal Magnetic Field Component, positive Eastward PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.J Magnetic Vertical Magnetic Field Component Z Port-aux-Francais Vertical Magnetic Field Component, positive upward in the Southern hemisphere, positive downward in the Northern hemisphere PT1H nT 10^9 >T Cartesian CGM -70000 70000 9999 Component.K Magnetic Magnetic Field Magnitude F Port-aux-Francais Magnetic Field Magnitude PT1H nT 10^9 >T 0 70000 9999 Magnitude Magnetic PAF 1957 D H Z F PAF 1958 D H Z F PAF 1959 D H Z F PAF 1960 D H Z F PAF 1961 D H Z F PAF 1962 D H Z F PAF 1963 D H Z F PAF 1964 D H Z F PAF 1965 D H Z F PAF 1966 D H Z F PAF 1967 D H Z F PAF 1968 D H Z PAF 1969 D H Z F PAF 1970 D H Z F PAF 1971 D H Z F PAF 1972 D H Z F PAF 1973 D H Z F PAF 1974 D H Z F PAF 1975 D H Z F PAF 1976 D H Z F PAF 1977 D H Z F PAF 1978 D H Z F PAF 1979 D H Z F PAF 1980 D H Z F PAF 1981 D H Z F PAF 1982 D H Z F PAF 1983 D H Z F PAF 1984 D H Z F PAF 1985 D H Z F PAF 1986 D H Z F PAF 1987 D H Z F PAF 1988 D H Z F PAF 1989 D H Z F PAF 1990 D H Z F PAF 1991 X Y Z F PAF 1992 X Y Z F PAF 1993 X Y Z F PAF 1994 X Y Z F PAF 1995 X Y Z F PAF 1996 X Y Z F PAF 1997 X Y Z F PAF 1998 X Y Z F PAF 1999 X Y Z F PAF 2000 X Y Z F PAF 2001 X Y Z F PAF 2002 X Y Z F PAF 2003 X Y Z F PAF 2004 X Y Z F PAF 2005 X Y Z F PAF 2006 X Y Z F PAF 2007 X Y Z F PAF 2008 X Y Z F PAF 2009 X Y Z F Digital WDC Exchange Format for Observatory Hourly Mean Values -------------------------------------------------------------- Magnetic data organized in 1-year files, with the information coded in ASCII Columns Format Description 1-3 A3 Observatory 3-letter code 4-5 I2 Year Last 2 digits, 1996 = 96. See also columns 15-16. 6-7 I2 Month (01-12) 8 Al Element (D, I, H, X, Y, Z, or F) 9-10 I2 Day of month (01-31) 11-12 A2 Blanks 13 A1 Arbitrary 14 A1 Arbitrary +-- Old Format: -------------------------+ 15-16 I2 Century digits Column 15: International Quiet or Year = 1889, Century digits = 18. Disturbed Days Q=1, D=2 Year = 1996, Century digits = 19. Column 16: Blank for data since 1900, Year = 2014, Century digits = 20. 8 for data before 1900. +----------------------------------------+ 17-20 I4 Tabular base The values are in degrees for D and I, and in hundreds of nanoTeslas for the intensity elements. 21-116 24I4 24 4-digit hourly mean values for the day. The values are in tenth-minutes for D and I, and in nanoTeslas for the intensity elements. The first hourly mean value represents the mean value between 00:00 UT and 01:00 UT, ..., the 24th value represents the mean between 23:00 UT and 24:00 UT. A missing value is identified by 9999. 117-120 I4 Daily Mean If any of the hourly mean values for the day are missing 9999 will appear as the daily mean. 121-122 Record end marker Two chars "cr"= 13 and "nl"= 10. The tabular bases, hourly mean values and daily means are right adjusted and signed if negative. Negative values are identified with a minus sign either adjacent to the first significant digit or in the high-order position of the field. Note: A blank digit will not appear between a (-) sign and the first significant digit. For example, a value may appear as -050 or b-50 but not as -b50 (b=blank). The 25 values in positions 21-120 will have the range -999 to 9998, with 9999 reserved for missing values. The records are sorted according to observatory code, year, month, element, day (positions 1-10). For the intensity elements: hourly value (nanoTeslas) = tab.base*100 + tab.value For the angles D and I: hourly value (Degrees) = tab.base + tab.value/600